EP 0485752 A1 19920520 - Double-ended reversible box wrench with 7-1/2 degree swing clearance.
Title (en)
Double-ended reversible box wrench with 7-1/2 degree swing clearance.
Title (de)
Rinförmiger Schraubenschlüssel mit 71/2 Grad Dreh-Spiel.
Title (fr)
Clé à oeil avec 71/2 degré de jeu angulaire.
Publication
Application
Priority
US 61173390 A 19901113
Abstract (en)
The double-ended reversible box wrench (10) for use with a hexagonal fastener includes two box wrenching heads (20,30) interconnected by a handle shank (11), with each head having a double-hexagonal socket opening therethrough, each of the outwardly directed corners (23,33) of which has an axis extending through the center of the socket opening. One socket has a corner inclined at an offset angle of 3-3/4 degrees to the shank axis (14) and the other socket has a corner inclined at an offset angle of 11-1/4 degrees to the shank axis so that, by sequential application of the four wrench faces to a hexagonal fastener, the fastener may be repeatedly rotated in the same direction while the wrench undergoes a swing of no more than 7-1/2 degrees during any one application. A wrench with offset angles of zero degrees and 10 degrees and a pivoting head wrench are also disclosed. <IMAGE>
IPC 1-7
IPC 8 full level
B25B 13/04 (2006.01)
CPC (source: EP KR US)
B25B 13/00 (2013.01 - KR); B25B 13/04 (2013.01 - EP US)
Citation (search report)
- [X] DE 396544 C 19240603 - WILLY BLAUFELDER
- [Y] FR 2563140 A1 19851025 - FACOM [FR]
- [Y] GB 1042403 A 19660914 - JACOB LIONEL DAVIES
Designated contracting state (EPC)
BE DE FR GB IT LU NL
DOCDB simple family (publication)
EP 0485752 A1 19920520; AU 8771291 A 19920514; CA 2053142 A1 19920514; JP H04269176 A 19920925; KR 920009513 A 19920625; MX 9101920 A 19920708; US 5218891 A 19930615
DOCDB simple family (application)
EP 91117611 A 19911016; AU 8771291 A 19911108; CA 2053142 A 19911010; JP 29574091 A 19911112; KR 910020056 A 19911112; MX 9101920 A 19911105; US 61173390 A 19901113